1) u + 2 = 4
u = 2
2) -5 = s - 3
-2 = s
3) 5/13t = -9
t = -9 × 13/5
t = -39/5
t = -7 4/5
4) 6 = x + 2/3
x = 6 - 2/3
x = 5 1/3
5) 13 + w/7 = -18
w/7 = -18 - 13
w/7 = -31
w = -31 × 7
w = -217
6) 17 = -13 - 8x
-8x = 17 + 13
-8x = 30
x = 30/-8
x = -15/4
x = - 3 3/4
~Hope I helped!~
*Also, next time, please post your questions individually, so that you could get a quicker answer, thanks! :)
